Unlock instant, AI-driven research and patent intelligence for your innovation.

Power switch with extinguishing section for extinguishing an electric arc

A current switch and arc suppression technology, applied in the direction of electric switches, circuits, electrical components, etc., can solve problems such as contact damage and precious metal contact burnout

Active Publication Date: 2014-02-12
K & N SCHALTERENTWICKLUNGSGES
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This leads to burning of the precious metal contacts used
Contact damage occurs when burning lasts too long, and burning is also possible

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Power switch with extinguishing section for extinguishing an electric arc
  • Power switch with extinguishing section for extinguishing an electric arc
  • Power switch with extinguishing section for extinguishing an electric arc

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0094] exist figure 1 A section through a contact body 2 of a known current switch is shown in . The contact body 2 has an interrupter 4 in which the contact bridge 1 with the contact section 7 is arranged. Contact zone 7 at figure 1 The center is rectangular and extends like the contact bridge 1 in the longitudinal direction 13 and in the width direction 14 . It should be noted, however, that other shapes, in particular circular shapes, of the contact section 7 are also possible, of course. The interrupter 4 has a width X in the width direction 14, typically 8 mm to 9 mm.

[0095] In addition, in figure 1 An arc 3 can be seen in , which follows the fracture 18 (see image 3 ) is formed between the contact section 7 and the contact section 8 of the contact piece 6 when the two contact sections 7 , 8 are separated from each other under voltage or load. The metal vapor formed by the molten material of the contact sections 7 , 8 and the subsequent dielectric breakdown occur...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A power switch, preferably a DC-current switch, comprises a contact body having at least one arc extinguish chamber, a contact portion of a contact bridge and a contact portion of a contact piece which extend along a longitudinal direction and a width direction are arranged in the arc extinguish chamber, wherein when a fracture is opened, an electric arc is formed under a load between the contact portions of the contact bridge and the contact piece. To ensure an effective extinguishing of the electric arc and to enable the use of as many parts of the existing power switch as possible, it is provided, according to the invention, that at least one arc extinguish chamber has an arc extinguish section in which the electric arc is deflectable into the arc extinguish section, the arc extinguish section is limited in the longitudinal direction by a first arc extinguish section wall and a second arc extinguish section wall, and limited in the width direction by a third arc extinguish section wall and a fourth arc extinguish section wall, and the first, second, third and fourth arc extinguish section walls form three closed corners and an open corner.

Description

technical field [0001] The invention relates to a current switch, preferably a DC current switch, comprising a contact body with at least one quenching chamber, in which a contact section of a contact bridge and a contact section of a contact piece are arranged, said The contact bridge extends along a longitudinal direction pointing from the contact bridge into the at least one interrupter chamber and a width direction extending transversely with respect to the longitudinal direction, wherein in parallel with respect to a height direction directed from the contact bridge into the contact piece An arc is formed under load between the contact bridge and the contact section of the contact when the fracture of the contact piece opens. Background technique [0002] When opening contacts through which current flows, an arc is created as long as its conditions exist. This leads to burning of the noble metal contacts used. When the burning lasts too long, damage to the contacts oc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01H9/44
CPCH01H9/443H01H9/302H01H9/346
Inventor A·德格怀特B·斯普利策多夫
Owner K & N SCHALTERENTWICKLUNGSGES